The routine is good. However there should be an option to be able to buy the trick w/o the gimmick.
The gimmick you get is as good as any of the good versions of it you have encountered
before. I personally like better matching between the gimmick and supplied coins -- easy to fix but
when you are paying near top dollar for this should be taken care of at the source.
I would
have been more happy buying the trick (for less) and making better use of something I already have.
This x100. I could see being interested in this as a $10 instructional download, but it's unnecessary to shell out 5x that if most of that cost is for something you've already got a couple of lying around if you do coin magic. There should be an option to get just the instructional component if you're pretty sure you've already got the gaff, at least when it's something fairly common -- you can always pick up that part separately later if you turn out to have been mistaken about the method.